Finding the Fourth Proportional to 70,889,901.77, 97,825,647.41 and 39,101,330.87
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Solution
The fourth proportional to 70,889,901.77, 97,825,647.41 and 39,101,330.87 is: 53,958,503.43
Step by Step Solution
- Step 1: Write the proportion equation
70,889,901.77 : 97,825,647.41 = 39,101,330.87 : x - Step 2: Convert to fraction form
70,889,901.77/97,825,647.41 = 39,101,330.87/x - Step 3: Cross multiply
70,889,901.77x = 97,825,647.41 × 39,101,330.87 - Step 4: Simplify right side
70,889,901.77x = 3,825,113,007,292,686 - Step 5: Solve for x
x = 3,825,113,007,292,686/70,889,901.77 - Step 6: Final answer
x = 53,958,503.43
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.